[gnome-shell/wip/gestures: 9/10] Add AppSwitchAction Clutter.GestureAction
- From: Carlos Garnacho <carlosg src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gnome-shell/wip/gestures: 9/10] Add AppSwitchAction Clutter.GestureAction
- Date: Fri, 27 Jun 2014 22:05:35 +0000 (UTC)
commit f659b66a9db44504c67d93947ea249eaec520e90
Author: Carlos Garnacho <carlosg gnome org>
Date: Fri Jun 27 22:44:30 2014 +0200
Add AppSwitchAction Clutter.GestureAction
This action implements 3-finger hold + 4th finger tap to switch
the focused application.
js/js-resources.gresource.xml | 1 +
js/ui/appSwitchAction.js | 64 +++++++++++++++++++++++++++++++++++++++++
2 files changed, 65 insertions(+), 0 deletions(-)
---
diff --git a/js/js-resources.gresource.xml b/js/js-resources.gresource.xml
index 3fed6a4..319a9de 100644
--- a/js/js-resources.gresource.xml
+++ b/js/js-resources.gresource.xml
@@ -32,6 +32,7 @@
<file>ui/animation.js</file>
<file>ui/appDisplay.js</file>
<file>ui/appFavorites.js</file>
+ <file>ui/appSwitchAction.js</file>
<file>ui/backgroundMenu.js</file>
<file>ui/background.js</file>
<file>ui/boxpointer.js</file>
diff --git a/js/ui/appSwitchAction.js b/js/ui/appSwitchAction.js
new file mode 100644
index 0000000..018f174
--- /dev/null
+++ b/js/ui/appSwitchAction.js
@@ -0,0 +1,64 @@
+// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
+
+const Lang = imports.lang;
+const Signals = imports.signals;
+const Clutter = imports.gi.Clutter;
+
+//in milliseconds
+let LONG_PRESS_TIMEOUT = 250;
+
+let MOTION_THRESHOLD = 30;
+
+const AppSwitchAction = new Lang.Class({
+ Name: 'AppSwitchAction',
+ Extends: Clutter.GestureAction,
+
+ _init : function() {
+ this.parent();
+ this.set_n_touch_points (3);
+ global.display.connect('grab-op-begin', Lang.bind(this, this.cancel));
+ global.display.connect('grab-op-end', Lang.bind(this, this.cancel));
+ },
+
+ vfunc_gesture_prepare : function(action, actor) {
+ return this.get_n_current_points() <= 4;
+ },
+
+ vfunc_gesture_begin : function(action, actor) {
+ let nPoints = this.get_n_current_points();
+ let event = this.get_last_event (nPoints - 1);
+
+ if (nPoints == 3)
+ this._longPressStartTime = event.get_time();
+ else if (nPoints == 4) {
+ // Check whether the 4th finger press happens after a 3-finger long press,
+ // this only needs to be checked on the first 4th finger press
+ if (this._longPressStartTime != null &&
+ event.get_time() < this._longPressStartTime + LONG_PRESS_TIMEOUT)
+ this.cancel();
+ else {
+ this._longPressStartTime = null;
+ this.emit('activated');
+ }
+ }
+
+ return this.get_n_current_points() <= 4;
+ },
+
+ vfunc_gesture_progress : function(action, actor) {
+ if (this.get_n_current_points() == 3) {
+ for (let i = 0; i < this.get_n_current_points(); i++) {
+ [startX, startY] = this.get_press_coords(i);
+ [x, y] = this.get_motion_coords(i);
+
+ if (Math.abs(x - startX) > MOTION_THRESHOLD ||
+ Math.abs(y - startY) > MOTION_THRESHOLD)
+ return false;
+ }
+
+ }
+
+ return true;
+ }
+});
+Signals.addSignalMethods(AppSwitchAction.prototype);
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